id	keyword
easat-8408	river
easat-8408	water
easat-8408	quality
easat-8408	ratah
easat-8408	season
easat-8408	station
easat-8408	status
easat-8408	method
easat-8408	concentration
easat-8408	index
easat-8408	standard
easat-8408	cross